Q. 124.0( 12 Votes )

A is right angled at A. If AL BC, prove that =.


Answer :

proof


We know that the sum of two acute angles of a right triangle is 90°.


Therefore,


+=90°


= 90°-


= 90°-____________________ (i)


+=90°


= 90°-____________________ (ii)


From equation (i) and (ii),


= Proved.


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